Warning: Permanently added '10.128.1.165' (ED25519) to the list of known hosts. 2025/08/18 20:40:54 ignoring optional flag "sandboxArg"="0" 2025/08/18 20:40:55 parsed 1 programs [ 47.435994][ T4188] cgroup: Unknown subsys name 'net' [ 47.575441][ T4188] cgroup: Unknown subsys name 'rlimit' [ 48.782470][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 50.672803][ T4212] syz-executor (4212) used greatest stack depth: 21152 bytes left [ 51.117346][ T4232] chnl_net:caif_netlink_parms(): no params data found [ 51.174827][ T4232] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.182509][ T4232] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.190817][ T4232] device bridge_slave_0 entered promiscuous mode [ 51.200819][ T4232] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.207936][ T4232] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.216219][ T4232] device bridge_slave_1 entered promiscuous mode [ 51.242918][ T4232] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.254193][ T4232] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.282563][ T4232] team0: Port device team_slave_0 added [ 51.290042][ T4232] team0: Port device team_slave_1 added [ 51.311952][ T4232] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 51.318910][ T4232] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 51.345082][ T4232] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 51.358325][ T4232] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 51.365584][ T4232] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 51.391634][ T4232] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 51.428791][ T4232] device hsr_slave_0 entered promiscuous mode [ 51.435721][ T4232] device hsr_slave_1 entered promiscuous mode [ 51.549210][ T4232] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 51.560859][ T4232] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 51.570337][ T4232] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 51.579378][ T4232] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 51.618066][ T4232] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.625290][ T4232] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.633033][ T4232] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.640103][ T4232] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.672491][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.682489][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.709314][ T4232] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.722846][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 51.734845][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.746424][ T4232] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.765351][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.774161][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.783068][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.790135][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.803351][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.812684][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.821460][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.828519][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.836541][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 51.853984][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.864309][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.873322][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.883825][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.892053][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.905167][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.921953][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.930582][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.943708][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.952612][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.963025][ T4232] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.031197][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.038683][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.051311][ T4232] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.066490][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 52.075151][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 52.093443][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 52.101680][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 52.110183][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 52.118641][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 52.128534][ T4232] device veth0_vlan entered promiscuous mode [ 52.138865][ T4232] device veth1_vlan entered promiscuous mode [ 52.154621][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 52.167572][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 52.175985][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 52.184446][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 52.194463][ T4232] device veth0_macvtap entered promiscuous mode [ 52.203775][ T4232] device veth1_macvtap entered promiscuous mode [ 52.217356][ T4232] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 52.224888][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 52.233306][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 52.241416][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 52.249775][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 52.276296][ T4232] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 52.283921][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 52.293074][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 52.304402][ T4232] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.314303][ T4232] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.323300][ T4232] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.332421][ T4232] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.253706][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.267502][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.286394][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 53.299802][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.308660][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.318894][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/08/18 20:41:03 executed programs: 0 [ 53.932182][ T4287] chnl_net:caif_netlink_parms(): no params data found [ 54.004995][ T4287] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.012301][ T4287] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.022695][ T4287] device bridge_slave_0 entered promiscuous mode [ 54.031453][ T4287] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.038557][ T4287] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.046282][ T4287] device bridge_slave_1 entered promiscuous mode [ 54.066577][ T4287] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.078296][ T4287] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.105048][ T4287] team0: Port device team_slave_0 added [ 54.113507][ T4287] team0: Port device team_slave_1 added [ 54.135667][ T4287] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.142789][ T4287] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 54.169617][ T4287] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.182759][ T4287] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.189712][ T4287] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 54.216004][ T4287] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.246498][ T4287] device hsr_slave_0 entered promiscuous mode [ 54.253399][ T4287] device hsr_slave_1 entered promiscuous mode [ 54.259888][ T4287] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 54.267720][ T4287] Cannot create hsr debugfs directory [ 54.342611][ T4287] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.840767][ T4246] Bluetooth: hci0: command 0x0409 tx timeout [ 57.920792][ T4255] Bluetooth: hci0: command 0x041b tx timeout [ 57.956327][ T4287] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.005996][ T4287] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.069279][ T4287] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.222632][ T4287] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.231684][ T4287] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.240118][ T4287] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.249920][ T4287] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.308424][ T4287] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.320748][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.332295][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.344166][ T4287] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.370597][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.379185][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.387958][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.395043][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.403843][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.436185][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.445713][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.454423][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.461559][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.469901][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.482580][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.507450][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 58.516749][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.526677][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.535830][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 58.546000][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.569555][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 58.578064][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.588688][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 58.597345][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.608136][ T4287] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.713214][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.720898][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.730611][ T4287] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.745375][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 58.754259][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 58.781720][ T759] device hsr_slave_0 left promiscuous mode [ 58.787983][ T759] device hsr_slave_1 left promiscuous mode [ 58.795142][ T759] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 58.802993][ T759] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 58.811233][ T759] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 58.818641][ T759] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 58.826308][ T759] device bridge_slave_1 left promiscuous mode [ 58.835080][ T759] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.847054][ T759] device bridge_slave_0 left promiscuous mode [ 58.854187][ T759] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.869955][ T759] device veth1_macvtap left promiscuous mode [ 58.876282][ T759] device veth0_macvtap left promiscuous mode [ 58.882690][ T759] device veth1_vlan left promiscuous mode [ 58.888547][ T759] device veth0_vlan left promiscuous mode [ 59.015833][ T759] team0 (unregistering): Port device team_slave_1 removed [ 59.027137][ T759] team0 (unregistering): Port device team_slave_0 removed [ 59.038840][ T759] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 59.054400][ T759] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 59.103174][ T759] bond0 (unregistering): Released all slaves [ 59.179039][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 59.187237][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 59.195589][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 59.204080][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 59.216086][ T4287] device veth0_vlan entered promiscuous mode [ 59.228182][ T4287] device veth1_vlan entered promiscuous mode [ 59.251682][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 59.260159][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 59.268739][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 59.277448][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.288510][ T4287] device veth0_macvtap entered promiscuous mode [ 59.298773][ T4287] device veth1_macvtap entered promiscuous mode [ 59.313958][ T4287] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.328159][ T4287] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.335938][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.344742][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 59.352940][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.361594][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.370198][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.380085][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.392154][ T4287] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.401490][ T4287] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.410207][ T4287] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.419269][ T4287] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.478874][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.494795][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.504158][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.514884][ T3080] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.523192][ T3080] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.532481][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 59.643102][ T4311] [ 59.645461][ T4311] ====================================================== [ 59.652467][ T4311] WARNING: possible circular locking dependency detected [ 59.659482][ T4311] 5.15.189-syzkaller #0 Not tainted [ 59.664666][ T4311] ------------------------------------------------------ [ 59.671820][ T4311] syz.0.17/4311 is trying to acquire lock: [ 59.677617][ T4311] ffff8880779a0c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 59.688685][ T4311] [ 59.688685][ T4311] but task is already holding lock: [ 59.696044][ T4311] ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 59.705702][ T4311] [ 59.705702][ T4311] which lock already depends on the new lock. [ 59.705702][ T4311] [ 59.716097][ T4311] [ 59.716097][ T4311] the existing dependency chain (in reverse order) is: [ 59.725105][ T4311] [ 59.725105][ T4311] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 59.733097][ T4311] __mutex_lock_common+0x1eb/0x2390 [ 59.738818][ T4311] mutex_lock_nested+0x17/0x20 [ 59.744097][ T4311] rfkill_register+0x33/0x8a0 [ 59.749294][ T4311] hci_register_dev+0x452/0x970 [ 59.754672][ T4311] vhci_create_device+0x32c/0x5c0 [ 59.760226][ T4311] vhci_write+0x391/0x450 [ 59.765079][ T4311] vfs_write+0x712/0xd00 [ 59.769838][ T4311] ksys_write+0x14d/0x250 [ 59.774680][ T4311] do_syscall_64+0x4c/0xa0 [ 59.779612][ T4311] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 59.786025][ T4311] [ 59.786025][ T4311] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 59.793836][ T4311] __mutex_lock_common+0x1eb/0x2390 [ 59.799551][ T4311] mutex_lock_nested+0x17/0x20 [ 59.804829][ T4311] vhci_send_frame+0x88/0x100 [ 59.810022][ T4311] hci_send_frame+0x1a9/0x2e0 [ 59.815210][ T4311] hci_tx_work+0x9f9/0x1710 [ 59.820222][ T4311] process_one_work+0x863/0x1000 [ 59.825668][ T4311] worker_thread+0xaa8/0x12a0 [ 59.830853][ T4311] kthread+0x436/0x520 [ 59.835428][ T4311] ret_from_fork+0x1f/0x30 [ 59.840358][ T4311] [ 59.840358][ T4311] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 59.849555][ T4311] __flush_work+0xdd/0x1b0 [ 59.854485][ T4311] hci_dev_do_close+0x1e7/0x1030 [ 59.859931][ T4311] hci_unregister_dev+0x2d7/0x580 [ 59.865465][ T4311] vhci_release+0x73/0xc0 [ 59.870306][ T4311] __fput+0x234/0x930 [ 59.874799][ T4311] task_work_run+0x125/0x1a0 [ 59.879896][ T4311] do_exit+0x61e/0x20a0 [ 59.884566][ T4311] do_group_exit+0x12e/0x300 [ 59.889678][ T4311] get_signal+0x6ca/0x12c0 [ 59.894607][ T4311] arch_do_signal_or_restart+0xc1/0x1300 [ 59.900754][ T4311] exit_to_user_mode_loop+0x9e/0x130 [ 59.906567][ T4311] exit_to_user_mode_prepare+0xb1/0x140 [ 59.912628][ T4311] syscall_exit_to_user_mode+0x16/0x40 [ 59.918598][ T4311] do_syscall_64+0x58/0xa0 [ 59.923530][ T4311] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 59.929940][ T4311] [ 59.929940][ T4311] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 59.937575][ T4311] __mutex_lock_common+0x1eb/0x2390 [ 59.943289][ T4311] mutex_lock_nested+0x17/0x20 [ 59.948569][ T4311] bg_scan_update+0x44/0x3b0 [ 59.953674][ T4311] process_one_work+0x863/0x1000 [ 59.959130][ T4311] worker_thread+0xaa8/0x12a0 [ 59.964328][ T4311] kthread+0x436/0x520 [ 59.968921][ T4311] ret_from_fork+0x1f/0x30 [ 59.973855][ T4311] [ 59.973855][ T4311] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 59.983664][ T4311] __lock_acquire+0x2c33/0x7c60 [ 59.989033][ T4311] lock_acquire+0x197/0x3f0 [ 59.994048][ T4311] __flush_work+0xdd/0x1b0 [ 59.998984][ T4311] __cancel_work_timer+0x3ac/0x520 [ 60.004601][ T4311] hci_request_cancel_all+0xcc/0x300 [ 60.010388][ T4311] hci_dev_do_close+0x4e/0x1030 [ 60.015743][ T4311] hci_rfkill_set_block+0x10a/0x190 [ 60.021447][ T4311] rfkill_set_block+0x1c6/0x420 [ 60.026795][ T4311] rfkill_fop_write+0x458/0x560 [ 60.032143][ T4311] vfs_write+0x300/0xd00 [ 60.036884][ T4311] ksys_write+0x14d/0x250 [ 60.041710][ T4311] do_syscall_64+0x4c/0xa0 [ 60.046627][ T4311] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 60.053025][ T4311] [ 60.053025][ T4311] other info that might help us debug this: [ 60.053025][ T4311] [ 60.063230][ T4311] Chain exists of: [ 60.063230][ T4311] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 60.063230][ T4311] [ 60.078940][ T4311] Possible unsafe locking scenario: [ 60.078940][ T4311] [ 60.086376][ T4311] CPU0 CPU1 [ 60.091718][ T4311] ---- ---- [ 60.097078][ T4311] lock(rfkill_global_mutex); [ 60.101820][ T4311] lock(&data->open_mutex); [ 60.108908][ T4311] lock(rfkill_global_mutex); [ 60.116165][ T4311] lock((work_completion)(&hdev->bg_scan_update)); [ 60.122727][ T4311] [ 60.122727][ T4311] *** DEADLOCK *** [ 60.122727][ T4311] [ 60.130847][ T4311] 1 lock held by syz.0.17/4311: [ 60.135670][ T4311] #0: ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 60.145737][ T4311] [ 60.145737][ T4311] stack backtrace: [ 60.151610][ T4311] CPU: 1 PID: 4311 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 [ 60.159560][ T4311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 60.169609][ T4311] Call Trace: [ 60.172872][ T4311] [ 60.175786][ T4311] dump_stack_lvl+0x168/0x230 [ 60.180444][ T4311] ? load_image+0x3b0/0x3b0 [ 60.184930][ T4311] ? show_regs_print_info+0x20/0x20 [ 60.190106][ T4311] ? print_circular_bug+0x12b/0x1a0 [ 60.195291][ T4311] check_noncircular+0x274/0x310 [ 60.200207][ T4311] ? add_chain_block+0x940/0x940 [ 60.205118][ T4311] ? lockdep_lock+0xdc/0x1e0 [ 60.209688][ T4311] ? __lock_acquire+0x12d9/0x7c60 [ 60.214691][ T4311] ? lockdep_lock+0x1e0/0x1e0 [ 60.219349][ T4311] ? mark_lock+0x94/0x320 [ 60.223657][ T4311] __lock_acquire+0x2c33/0x7c60 [ 60.228495][ T4311] ? verify_lock_unused+0x140/0x140 [ 60.233675][ T4311] ? verify_lock_unused+0x140/0x140 [ 60.238858][ T4311] lock_acquire+0x197/0x3f0 [ 60.243338][ T4311] ? __flush_work+0xc1/0x1b0 [ 60.247908][ T4311] ? __lock_acquire+0x7c60/0x7c60 [ 60.252912][ T4311] ? read_lock_is_recursive+0x10/0x10 [ 60.258261][ T4311] ? start_flush_work+0x776/0x820 [ 60.263266][ T4311] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 60.269139][ T4311] ? _raw_spin_unlock+0x40/0x40 [ 60.273966][ T4311] __flush_work+0xdd/0x1b0 [ 60.278363][ T4311] ? __flush_work+0xc1/0x1b0 [ 60.282929][ T4311] ? flush_work+0x20/0x20 [ 60.287242][ T4311] ? try_to_grab_pending+0xf3/0x7e0 [ 60.292417][ T4311] ? lockdep_hardirqs_off+0x70/0x100 [ 60.297682][ T4311] ? mark_lock+0x94/0x320 [ 60.301991][ T4311] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 60.307953][ T4311] ? lock_chain_count+0x20/0x20 [ 60.312778][ T4311] ? mark_lock+0x94/0x320 [ 60.317085][ T4311] ? __cancel_work_timer+0x331/0x520 [ 60.322346][ T4311] __cancel_work_timer+0x3ac/0x520 [ 60.327437][ T4311] ? cancel_work_sync+0x20/0x20 [ 60.332269][ T4311] ? __cancel_work+0x1f4/0x2d0 [ 60.337009][ T4311] ? lockdep_hardirqs_on+0x94/0x140 [ 60.342185][ T4311] ? __cancel_work+0x26f/0x2d0 [ 60.346929][ T4311] ? cancel_work+0x20/0x20 [ 60.351321][ T4311] ? lock_chain_count+0x20/0x20 [ 60.356148][ T4311] hci_request_cancel_all+0xcc/0x300 [ 60.361412][ T4311] hci_dev_do_close+0x4e/0x1030 [ 60.366241][ T4311] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 60.372111][ T4311] ? _raw_spin_unlock+0x40/0x40 [ 60.376941][ T4311] hci_rfkill_set_block+0x10a/0x190 [ 60.382118][ T4311] ? rcu_lock_release+0x20/0x20 [ 60.386946][ T4311] rfkill_set_block+0x1c6/0x420 [ 60.391777][ T4311] rfkill_fop_write+0x458/0x560 [ 60.396607][ T4311] ? verify_lock_unused+0x140/0x140 [ 60.401783][ T4311] ? rfkill_fop_read+0x4b0/0x4b0 [ 60.406700][ T4311] ? common_file_perm+0x150/0x1c0 [ 60.411703][ T4311] ? fsnotify_perm+0x5d/0x560 [ 60.416360][ T4311] ? security_file_permission+0x75/0xa0 [ 60.421882][ T4311] ? rfkill_fop_read+0x4b0/0x4b0 [ 60.426797][ T4311] vfs_write+0x300/0xd00 [ 60.431020][ T4311] ? file_end_write+0x250/0x250 [ 60.435849][ T4311] ? __context_tracking_exit+0x4c/0x80 [ 60.441288][ T4311] ? __lock_acquire+0x7c60/0x7c60 [ 60.446293][ T4311] ? __fdget_pos+0x1e2/0x370 [ 60.450861][ T4311] ksys_write+0x14d/0x250 [ 60.455169][ T4311] ? __ia32_sys_read+0x80/0x80 [ 60.459909][ T4311] ? lockdep_hardirqs_on+0x94/0x140 [ 60.465087][ T4311] do_syscall_64+0x4c/0xa0 [ 60.469485][ T4311] ? clear_bhb_loop+0x30/0x80 [ 60.474140][ T4311] ? clear_bhb_loop+0x30/0x80 [ 60.478795][ T4311] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 60.484676][ T4311] RIP: 0033:0x7fd8d7773be9 [ 60.489075][ T4311] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 60.508669][ T4311] RSP: 002b:00007ffd812d7db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 60.517079][ T4311] RAX: ffffffffffffffda RBX: 00007fd8d799afa0 RCX: 00007fd8d7773be9 [ 60.525039][ T4311] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 60.532988][ T4311] RBP: 00007fd8d77f6e19 R08: 0000000000000000 R09: 0000000000000000 [ 60.540937][ T4311] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 60.548888][ T4311] R13: 00007fd8d799afa0 R14: 00007fd8d799afa0 R15: 0000000000000003 [ 60.556842][ T4311] [ 60.573180][ T4255] Bluetooth: hci0: command 0x040f tx timeout